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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* External admin page class that allows a callback to be provided to determine whether page can be accessed
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*
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* @package core_admin
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* @copyright 2019 Marina Glancy
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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namespace core_admin\local\externalpage;
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use admin_externalpage;
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defined('MOODLE_INTERNAL') || die();
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require_once("{$CFG->libdir}/adminlib.php");
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/**
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* Admin externalpage class
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*
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* @package core_admin
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* @copyright 2019 Marina Glancy
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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class accesscallback extends admin_externalpage {
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/** @var callable $accesscheckcallback */
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protected $accesscheckcallback;
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/**
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* Class constructor
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*
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* @param string $name
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* @param string $visiblename
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* @param string $url
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* @param callable $accesscheckcallback The callback method that will be executed to check whether user has access to
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* this page. The setting instance ($this) is passed as an argument to the callback. Should return boolean value
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* @param bool $hidden
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*/
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public function __construct(string $name, string $visiblename, string $url, callable $accesscheckcallback,
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bool $hidden = false) {
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$this->accesscheckcallback = $accesscheckcallback;
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parent::__construct($name, $visiblename, $url, [], $hidden);
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}
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/**
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* Determines if the current user has access to this external page based on access callback
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*
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* @return bool
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*/
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public function check_access() {
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return ($this->accesscheckcallback)($this);
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}
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}
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